Global Patent Index - EP 3566340 A4

EP 3566340 A4 20200826 - TECHNIQUES FOR COMMUNICATING FEEDBACK IN WIRELESS COMMUNICATIONS

Title (en)

TECHNIQUES FOR COMMUNICATING FEEDBACK IN WIRELESS COMMUNICATIONS

Title (de)

VERFAHREN ZUR KOMMUNIKATION VON FEEDBACK IN DRAHTLOSKOMMUNIKATIONEN

Title (fr)

TECHNIQUES DE COMMUNICATION DE RÉTROACTION DANS DES COMMUNICATIONS SANS FIL

Publication

EP 3566340 A4 20200826 (EN)

Application

EP 17890279 A 20170106

Priority

CN 2017070443 W 20170106

Abstract (en)

[origin: WO2018126444A1] Aspects of the present disclosure describe receiving, from an access point, an indication of at least one of a beamforming method for beamforming a RS or a normalization method for normalizing power for beamforming the RS. A channel covariance matrix corresponding to interference over a plurality of antenna ports can be generated, as well as a RS beamforming matrix based at least in part on modifying the channel covariance matrix and on the normalization method. The RS can be generated based on the RS beamforming matrix and the beamforming method. The RS can be transmitted to the access point based on the RS beamforming matrix.

IPC 8 full level

H04B 17/00 (2015.01); H04B 7/0404 (2017.01); H04B 7/0417 (2017.01); H04B 7/06 (2006.01); H04B 17/345 (2015.01); H04B 17/382 (2015.01); H04L 25/02 (2006.01)

CPC (source: EP US)

H04B 7/0404 (2013.01 - EP); H04B 7/0617 (2013.01 - EP US); H04B 7/0865 (2013.01 - US); H04B 17/345 (2015.01 - EP); H04B 17/382 (2015.01 - EP); H04L 25/021 (2013.01 - EP); H04L 25/0224 (2013.01 - EP); H04L 25/0242 (2013.01 - EP); H04B 7/063 (2013.01 - US); H04B 7/0634 (2013.01 - US); H04B 17/336 (2015.01 - EP); H04B 17/345 (2015.01 - US)

Citation (search report)

  • [XI] US 2014112168 A1 20140424 - CHEN WANSHI [US], et al
  • [XI] QUALCOMM INCORPORATED: "Views on RS for CSI acquisition", vol. RAN WG1, no. Lisbon, Portugal; 20161010 - 20161014, 9 October 2016 (2016-10-09), XP051150174, Retrieved from the Internet <URL:http://www.3gpp.org/ftp/Meetings_3GPP_SYNC/RAN1/Docs/> [retrieved on 20161009]
  • [XI] QUALCOMM INCORPORATED: "Views on SRS", vol. RAN WG1, no. Reno, Nevada, USA; 20161114 - 20161118, 13 November 2016 (2016-11-13), XP051176010, Retrieved from the Internet <URL:http://www.3gpp.org/ftp/Meetings_3GPP_SYNC/RAN1/Docs/> [retrieved on 20161113]
  • [A] MITSUBISHI ELECTRIC: "Discussion on Precoded SRS", 3GPP DRAFT; R1-092441, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, no. Los Angeles, USA; 20090623, 23 June 2009 (2009-06-23), XP050350953
  • See references of WO 2018126444A1

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

WO 2018126444 A1 20180712; CN 110140309 A 20190816; CN 110140309 B 20210827; EP 3566340 A1 20191113; EP 3566340 A4 20200826; EP 3566340 B1 20230816; US 11044005 B2 20210622; US 2020067592 A1 20200227

DOCDB simple family (application)

CN 2017070443 W 20170106; CN 201780082106 A 20170106; EP 17890279 A 20170106; US 201716465477 A 20170106